The purpose of this study is to contribute to the development and understanding of the influence of secrecy on therapeutic alliance and on treatment satisfaction. The study recruited subjects from postings on bulletin boards and by word-of-mouth who were currently in psychotherapy. Thirty subjects who were in individual therapy participated in the study. The sample consisted of 12 males and 18 females who were all currently in their own individual therapy. Subjects were given several questionnaires: the Self Concealment Scale (SCS) (Larson & Chastain, 1990), the Working Alliance Inventory (WAI) (Horvath, 1981, 1986) and the Client Satisfaction Questionnaire-8 (CSQ-8) (Larson & Greenfield, 2004) as well as a Demographic Questionnaire. Of the sample, 43 reported concealing at least some information from their therapists, a finding that is supported by a number of other studies (Farber, 2003; Hall & Farber, 2001; Hill et al, 1993; Kelly, 1998; Norton, Feldman, & Tafoya, 1974; Regan & Hill, 1992; Thompson & Hill, 1991; Weiner & Shuman, 1984). Nevertheless, a number of prospective participants declined to be in the study because the subject of secrets being from their therapist was so upsetting. This experience was also reported by a number of subjects who ended up participating in the study as well. What this finding suggests is that it is not so unusual for clients to conceal information from their therapist. In terms of the study's hypotheses, those subjects who reported higher levels of self concealment also reported less of a therapeutic alliance with their therapist and less client satisfaction with therapy. These findings were supported by other literature on this subject (Kahn, Achter, & Shambaugh, 2001; Kelly, 2000a, 2000b; Kelly, Klusas, von Weiss, & Kenny, 2001; Regan & Hill, 1992; Wright, Ingram, Chemtob, & Perez-Arce, 1985; Yalom, 1985). In terms of predictors of client therapy satisfaction, therapeutic alliance explained 78 of the variance in satisfaction scores compared to only 15 for self concealment. This provides support for therapeutic alliance as a more significant predictor of treatment satisfaction over and above concealment in therapy. A number of implications for these findings were discussed as well as suggestions for future research..